Type3Message.getDefaultFlags(Type2Message t2m): Preserve NTLM2 flag during message construction
Type3Message.getDefaultFlags(Type2Message t2m): Preserve NTLM2 flag during message construction

We should preserve NTLMSSP_NEGOTIATE_NTLM2 flag if server requested it
in CHALLENGE_MESSAGE sent by server.
In this case server has specifically requested NTLMv2 authentication schema
so we must conform to it.

kamenim/jcifs,kamenim/jcifs,kamenim/jcifs